stats.c File Reference

Statistics module. More...

#include <log/stats.h>
#include <arch/io.h>
#include <arch/mem.h>
#include <arch/timer.h>
#include <core/arg_parse.h>
#include <core/core.h>
#include <assert.h>
#include <inttypes.h>
#include <memory.h>
#include <stdarg.h>
#include <stdatomic.h>
#include <stdint.h>
#include <stdio.h>

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Data Structures
struct	stats_measure
	A set of statistical values of a single metric. More...
struct	stats_thread
	A container for statistics in a logical time period. More...
struct	stats_node
struct	stats_glob

Macros
#define	STATS_BUFFER_ENTRIES   (1024)
#define	STD_DEV_POWER_2_EXP   5
#define	STATS_MAX_STRLEN   32U

Functions
static void	file_write_chunk (FILE *f, const void *data, size_t data_size)
static void *	file_memory_load (FILE *f, int64_t *f_size_p)
static FILE *	file_open (const char *open_type, const char *fmt,...)
	A version of fopen() which accepts a printf style format string. More...
void	stats_global_time_start (void)
	Initializes the internal timer used to take accurate measurements.
void	stats_global_time_take (enum stats_global_time this_stat)
	Initializes the internal timer used to take accurate measurements.
void	stats_global_init (void)
	Initializes the stats subsystem in the node.
void	stats_init (void)
	Initializes the stats subsystem in the current thread.
static void	stats_files_receive (FILE *o)
static void	stats_files_send (void)
static void	stats_file_final_write (FILE *o)
void	stats_global_fini (void)
	Finalizes the stats subsystem in the node. More...
void	stats_time_start (enum stats_time this_stat)
void	stats_time_take (enum stats_time this_stat)
void	stats_on_gvt (simtime_t gvt)
void	stats_dump (void)

Variables
const char *const	s_names []
	The statistics names, used to fill in the header of the final csv. More...
static timer_uint	sim_start_ts
static struct stats_glob	stats_glob_cur
static FILE *	stats_node_tmp
static FILE **	stats_tmps
static __thread struct stats_thread	stats_cur
static __thread timer_uint	last_ts [STATS_COUNT]

Detailed Description

Statistics module.

All facilities to collect, gather, and dump statistics are implemented in this module.

Copyright

Copyright (C) 2008-2021 HPDCS Group https://hpdcs.github.io

Definition in file stats.c.

Function Documentation

file_open()

static FILE* file_open ( const char *  open_type, const char *  fmt,   ...  )

static

A version of fopen() which accepts a printf style format string.

Parameters

open_type	a string which controls how the file is opened (see fopen())
fmt	the file name expressed as a printf style format string
...	the list of additional arguments used in fmt (see printf())

Definition at line 121 of file stats.c.

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stats_global_fini()

void stats_global_fini

(

void

)

Finalizes the stats subsystem in the node.

When finalizing this subsystem the master node formats and dumps his statistics from his temporary files onto the final csv. Then, in a distributed setting, he receives the slaves temporary files, formatting and dumping their statistics as well.

Definition at line 273 of file stats.c.

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Variable Documentation

s_names

const char* const s_names[]

Initial value:

= {
        [STATS_ROLLBACK] = "rollbacks",
        [STATS_GVT] = "gvt",
        [STATS_MSG_SILENT] = "silent messages",
        [STATS_MSG_PROCESSED] = "processed messages"
}

The statistics names, used to fill in the header of the final csv.

Definition at line 78 of file stats.c.